ADVANTAGES OF FLY ASH IN CONCRETE:

ADVANTAGES OF FLY ASH IN CONCRETE Fly ash is a pozzolana. Improves concrete’s workability. Generally exhibits less bleeding & segregation. Sulfate and alkali aggregate resistance. It has a low heat of hydration. Cost of flyash is less than portland cement.

ADVANTAGES OF FLY ASH BRICKS:

ADVANTAGES OF FLY ASH BRICKS No breakage during transport. Due to Uniform size of bricks, mortar & plaster reduces almost by 50%. Seepage of water through bricks is considerably reduced. There is no requirement of soaking in water for 24 hours. Sprinkling of water is enough.

PowerPoint Presentation:

Reclamation of fly ash dumps

HYDRO SECTOR:

HYDRO SECTOR The first use of fly ash concrete in hydro sector is in the U.S. Hoover Dam project in 1929. Too much internal heat in concrete was predicted to have a detrimental effect on concrete strengths. It was found that by reducing the amount of portland cement in a concrete mix and replacing it with fly ash, the same strength could be achieved while the internal temperature of the concrete could be greatly reduced. Fly ash has also been found to effectively and economically reduce the risk of ASR (Alkali-Silica Reaction).

PowerPoint Presentation:

Lay out of Hoover Dam Top view of Hoover Dam

PowerPoint Presentation:

Side views of Hoover dam

USE OF FLY ASH IN PREPARATION OF OTHER PRODUCTS:

USE OF FLY ASH IN PREPARATION OF OTHER PRODUCTS Various high value added products developed using flyash as raw material. The use of carbon derived from flyash as an adsorbant for waste water treatment and its use as filler for rubber industry has been established. The use of flyash for manufacture of high wear resistant tiles appears to be viable as a substitute for high alumina ceramics for various abrasion and wear resistant applications. Coal ash mineral wool is produced abroad based on well developed reliable technology. Flyash composite wood substitutes developed in India using 25-35% flyash is considered to be low cost an better alternative to ordinary wood.

PowerPoint Presentation:

Let Us Harness Billion Dollars Of Resources That Has Been Wasted Away So Far CONCLUSION